<template>
  <el-container>
    <el-header>Header</el-header>
    <el-container>
      <el-aside width="200px">Aside</el-aside>
      <el-container>
        <el-main>
          <img alt="Vue logo" src="./assets/logo.png">
          <el-button @click="visible = true">Button</el-button>
          <el-dialog :visible.sync="visible" title="Hello world">
            <p>Try Element</p>
          </el-dialog>
        </el-main>
        <el-footer>Footer</el-footer>
      </el-container>
    </el-container>
  </el-container>
</template>



<script>

export default {
  name: 'App',
  data: function(){
    return { visible: false }
  }
}
</script>

<style>
  .el-header, .el-footer {
    background-color: #B3C0D1;
    color: #333;
    text-align: center;
    line-height: 60px;
  }
  
  .el-aside {
    background-color: #D3DCE6;
    color: #333;
    text-align: center;
    line-height: 200px;
  }
  
  .el-main {
    background-color: #E9EEF3;
    color: #333;
    text-align: center;
    line-height: 160px;
    height: 100%;
  }
  
  body > .el-container {
    height: 100%;
  }
  
  .el-container:nth-child(5) .el-aside,
  .el-container:nth-child(6) .el-aside {
    line-height: 260px;
  }
  
  .el-container:nth-child(7) .el-aside {
    line-height: 320px;
  }
</style>
